Principal English Translation: 

a piece of writing, a painting, or something with a design (see attestations); the initial "i" on this word drops away before tla-, as in tlacuilolli, which has probably contributed to the evolution of the word cuilolli

Orthographic Variants: 
Attestations from sources in English: 

'tlahtohchîmalli ihcuilôlli' = le bouclier royal décoré de motifs = the royal shield decorated with patterns
Gran Diccionario Náhuatl, citing A. Wimmer (2004), who recognizes that it is a "variante graphique de ihcuilôlli" (a graphic variant of ihcuiloli). Translations to English here by Stephanie Wood

See the Visual Lexicon of Aztec Hieroglyphs for examples of the Cuilol (an apocopation of cuilolli) or icuilolli personal name glyph.